Managing groundwater compliance at CCR facilities requires consultants with extensive experience assessing, monitoring, and, if necessary, remediating groundwater impacts to comply with CCR regulations. Geosyntec has demonstrated experience in groundwater characterization and development of robust conceptual site models which serve as the foundation for understanding migration pathways, exposure risks, and remedial alternative evaluations and implementation.

Geosyntec offers a full range of CCR compliance and remediation services for groundwater. We have designed, implemented, and optimized traditional remediation technologies (e.g., pump and treat), but when site conditions allow, we can design and implement advanced technologies such as geochemical controls and the TreeWell® phytoremediation technology for in situ remediation of inorganics like arsenic and selenium. Geosyntec continues to advance the CCR practice through technical innovations and partnerships. For example, in collaboration with the Electric Power Research Institute (EPRI) and a utility client, we are evaluating the use of biogeochemical processes for CCR immobilization, including the ability to analyze key DNA targets to monitor the process. In addition, EPRI and the Interstate Technology & Regulatory Council (ITRC) frequently request Geosyntec to author key guidance documents (e.g., on monitored natural attenuation [MNA] of groundwater), remedial technology fact sheets, and other related topics.

Keys to Success

We have saved our clients millions of dollars in unnecessary remediation costs by obtaining regulatory approval of MNA remedies and alternate source demonstrations based on site-specific interpretation and evaluations. Our geochemistry modeling expertise has been critical to understanding changing subsurface conditions and potential mobilization of naturally occurring metals in groundwater during CCR facility closure and/or construction. Through Geosyntec’s internal research and development department, the Technology Advisory Counsel, we have funded research to develop a reactive media for placement in permeable reactive barriers to remove boron from groundwater.